Functions

and | (1-2) |

have (i) the amplitude , (ii) the period , and (iii) the phase shift . Notice that (1-2) can be rewritten in the respective form of (1-1) with and :

(1-3) |

(1-4) |

**Cycle.**
The interval
represents one cycle.
The graph of one cycle is given by
the functions (1-3)-(1-4)
with phase shift .

Department of Mathematics